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咨(zi)詢熱(re)線：
一、化學名：硫酸鈉
二、分(fen)子式：Na2SO4；Na2SO4·10H2O
三、分(fen)子(zi)量：無水：142.04；十水：322.24
四(si)、CAS：無水：7757-82-6；十(shi)水：7727-73-3
五、性狀：白(bai)色單斜晶系結晶或粉(fen)末，無臭(chou)。有苦咸味，相對密度(du)2.68，熔點884℃，溶(rong)于水(shui)，水(shui)溶(rong)液呈中性或弱堿性，溶(rong)于甘油，不溶(rong)于乙醇(chun)。暴露于空氣中易(yi)吸濕(shi)成(cheng)為(wei)含水(shui)硫酸鈉(na)。高(gao)純度(du)、顆粒細(xi)的無水(shui)硫酸鈉(na)稱為(wei)元明粉(fen)。
六、用途(tu)：主要用于制(zhi)造水(shui)玻璃、玻璃、瓷釉、紙(zhi)漿、制(zhi)冷(leng)混合劑(ji)、洗滌(di)劑(ji)、干燥劑(ji)、染(ran)料稀釋劑(ji)、分析化學試劑(ji)、醫(yi)藥品、飼料等。
七、包(bao)裝：內襯聚乙烯塑料袋(dai)，外套(tao)復合塑料編織袋(dai)包(bao)裝，每袋(dai)凈重25kg。
八、貯存與(yu)運輸(shu)(shu)：本品應貯存在干燥通風(feng)清(qing)潔的庫房中(zhong)，裝載運輸(shu)(shu)時要輕裝輕放，防止(zhi)包裝破損，防止(zhi)受(shou)(shou)潮(chao)、受(shou)(shou)熱，運輸(shu)(shu)過程(cheng)中(zhong)防止(zhi)雨淋受(shou)(shou)潮(chao)，應與(yu)有毒(du)物品隔離。
| 質 量 指 標 | Specifications | GB29209-2012 | FCCVII | ||
| 含量( Na2SO4以干基計），w/% | Content (Na2SO4, On Dry Basis),w/% | 99.0-100.5 | 99.0-100.5 | ||
| 鉛（Pb），mg/kg ≤ | Lead(Pb),mg/kg ≤ | 2 | 2 | ||
| 硒（Se），mg/kg ≤ | Selenium(Se),mg/kg ≤ | 30 | 30 | ||
| 砷（As），mg/kg ≤ | Arsenic(As),mg/kg ≤ | 3 | ——— | ||
| 干燥減量，w/% | 無水 ≤ | Loss on drying,w/% | Anhydrous ≤ | 1.0 | 1.0 |
| 十水 | Decahydrate | 51.0-57.0 | 51.0-57.0 | ||
1、Chemical Name: Sodium Sulfate
2、Molecular Formula: Na2SO4 , Na2SO4·10H2O
3、Molecular Weight: Anhydrous: 142.04 ; Decahydrate:322.24
4、CAS: Anhydrous:7757-82-6 ; Decahydrate:7727-73-3
5、Character: It’s white monoclinic crystal or crystalline powder, odorless. It tastes bitter and salty. Relative density is 2.68. Melting point is 884℃. It’s soluble in water and glycerin, insoluble in ethanol. Aqueous solution is alkaline. When exposed to air, it’ll easily absorb moisture and turn into aqueous Sodium Sulfate. Fine Sodium Sulfate Decahydrate with high purity is called glauber salt.
6、Usage: It is mainly used to make water glass, glass, enamel, pulp, refrigeration mixture, detergent, desiccant, dye diluent, analytical chemical reagent, medicine, feed, etc.
7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.